1    /* 
2     * Model a die in terms of two properties: 
3     * -order, the number of faces, 
4     * -top, the value of the top face. 
5     */
6    
7    package chance;
8    
9    public class Die {
10       //INSTANCE VARIABLES (STATE)
11       private int order;
12       private int top;
13   
14       //THE CONSTRUCTORS
15       public Die(){
16           order = 6;
17           top = (int)((Math.random()*6) + 1);
18       }
19   
20       public Die(int nrOfSides){
21           order = nrOfSides;
22           top = (int) ( (Math.random() *nrOfSides) + 1);
23       }
24   
25       //THE METHODS (BEHAVIOR)
26           public int top() {
27               return top;
28       }
29   
30       public void roll() {
31           top = (int) ( (Math.random() * order) + 1);
32       }
33   }
34